Exhaust options for Auto guys?

dlbrooks18 · 10-29-2009, 01:17 PM

if your looking for power and not sound, catless dp's + stock midpipes and exhaust is enough.. car will sound pretty much like stock and give you a good 20-30whp gain, only difference in sound is you can hear your turbo's spool and it's sounds meaner on WOT... the stock exhaust is good enough IMO

badass335 · 10-29-2009, 01:20 PM

Thats the next step after the bastuck.. I figured i spent a fortune here already, try it out like this and see. if not, i'll part out the rears sets, keep the CP-E Catted DP's and throw on the stock exhaust.

dlbrooks18 · 10-29-2009, 01:24 PM

Quote:

Originally Posted by badass335

Thats the next step after the bastuck.. I figured i spent a fortune here already, try it out like this and see. if not, i'll part out the rears sets, keep the CP-E Catted DP's and throw on the stock exhaust.

cool, keep us posted..

badass335 · 10-29-2009, 01:25 PM

Will do!

enrita · 10-29-2009, 01:37 PM

Tomorrow i am installed RennArt Resonated midpipes and xpipe. Going to be interesting to see what the sound will be and mostly if the droning i got since the Borla racing pipes istall will disappear.
Have as well AR catless dps and Bastuck quad.

badass335 · 10-29-2009, 01:40 PM

Quote:

Originally Posted by enrita

Tomorrow i am installed RennArt Resonated midpipes and xpipe. Going to be interesting to see what the sound will be and mostly if the droning i got since the Borla racing pipes istall will disappear.
Have as well AR catless dps and Bastuck quad.

This would be an awesome test! I'll hopefully have my bastucks by Monday so in the shop by Tuesday

Would be great to hear how yours works out!

rbaldwin28 · 10-29-2009, 07:41 PM

Stock Dp's, AE downpipe back. No drone.

Nick@aep · 10-29-2009, 08:10 PM

Quote:

Originally Posted by rbaldwin28

Stock Dp's, AE downpipe back. No drone.

gian335 · 10-29-2009, 08:24 PM

Quote:

Originally Posted by rbaldwin28

Stock Dp's, AE downpipe back. No drone.

+1...cant go wrong with that, no drone there

badass335 · 10-29-2009, 10:03 PM

Quote:

Originally Posted by gian335

+1...cant go wrong with that, no drone there

The only issue is, I have high flow catted dps! So how does that change sound?

Nick@aep · 10-30-2009, 01:19 PM

Quote:

Originally Posted by badass335

The only issue is, I have high flow catted dps! So how does that change sound?

Should work great still. High flow catted downpipes are much quieter than catless downpipes.

badass335 · 10-30-2009, 02:07 PM

That gives me A LOT of hope!! woohoo! My bastuck will show up tonight so time to get it installed early next week!!

enrita · 10-30-2009, 02:08 PM

Installed the Resonated REnnart midpipes and xpipes... finally no freaken drone

Proper Motion LLC · 10-30-2009, 02:21 PM

Quote:

Originally Posted by Nick@AEPerformance

Should work great still. High flow catted downpipes are much quieter than catless downpipes.

But catted downpipes also make less HP, gee if only someone made resonated downpipes...

Nick@aep · 10-30-2009, 04:14 PM

Quote:

Originally Posted by 09AlpineTTSedan

But catted downpipes also make less HP, gee if only someone made resonated downpipes...

Its a marginal difference. Not a bad tradeoff for saving the environment and cutting down on some smell / noise.

rbaldwin28 · 10-30-2009, 04:26 PM

I would also recommend Ae Tubro back because it bolts right up on the e92. I do my own work on my car and I can't weld. Good luck with the drone. I hope catted DP don't change the sound too much because I love it. In DS it is head turning, but when I see a cop back to D and he won't even notice me.

enrita · 10-30-2009, 05:54 PM

Catted Dps are useless. Keep the stock ones than.

rbaldwin28 · 10-31-2009, 04:08 AM

I thought: Good- Stock
Better- Catted Downpipes
Best- Catless Downpipes
This is not true?

badass335 · 10-31-2009, 04:12 AM

Quote:

Originally Posted by rbaldwin28

I thought: Good- Stock
Better- Catted Downpipes
Best- Catless Downpipes
This is not true?

It is. I've talked to the guys at AR and CP-E and both said that it's very very minimal between the catted and catless. Having said that, if you are all about power, go catless. I'm will to give up the 2-5 whp to go with catted to keep things nice and quiet in the cabin plus no smell! AND i'm being green.

rbaldwin28 · 10-31-2009, 04:49 AM

Quote:

Originally Posted by badass335

It is. I've talked to the guys at AR and CP-E and both said that it's very very minimal between the catted and catless. Having said that, if you are all about power, go catless. I'm will to give up the 2-5 whp to go with catted to keep things nice and quiet in the cabin plus no smell! AND i'm being green.

Yea Cali SMOG. As long as I can turn the boost up a little safely I'm in

. Witch are best

enrita · 10-31-2009, 05:30 AM

its not all about power. Quicker spool up and instant response, Less heat generated close to the turbos = turbo life just got longer.

e.n335 · 10-31-2009, 08:55 AM

Quote:

Originally Posted by enrita

its not all about power. Quicker spool up and instant response, Less heat generated close to the turbos = turbo life just got longer.

Very true. All who might consider emissions can go the catted route without major disadvantages. Much better than stock anyways. It depends on what you like to achieve. I have a daily driver, IMO very reliable and put down 400+bhp/560NM (~ 360whp/365wtq). A powerful car and I don't race. No need for more power, LSD and suspension will be next mods. Go catless, if you like to sqeeze everything out of the engine with stock turbos, injection and coolant / oil cooling systems.

10-29-2009, 01:17 PM	#23
dlbrooks18 Brigadier General 175 Rep 3,736 Posts Drives: e90 335i Join Date: Nov 2008 Location: Los Angeles iTrader: (2)	if your looking for power and not sound, catless dp's + stock midpipes and exhaust is enough.. car will sound pretty much like stock and give you a good 20-30whp gain, only difference in sound is you can hear your turbo's spool and it's sounds meaner on WOT... the stock exhaust is good enough IMO __________________ 2008 E90 335
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10-29-2009, 01:20 PM	#24
badass335 Lieutenant Colonel 129 Rep 1,953 Posts Drives: 2017 540i Xdrive Join Date: Jul 2007 Location: Surrey, BC iTrader: (10)	Thats the next step after the bastuck.. I figured i spent a fortune here already, try it out like this and see. if not, i'll part out the rears sets, keep the CP-E Catted DP's and throw on the stock exhaust.
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10-29-2009, 01:25 PM	#26
badass335 Lieutenant Colonel 129 Rep 1,953 Posts Drives: 2017 540i Xdrive Join Date: Jul 2007 Location: Surrey, BC iTrader: (10)	Will do!
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10-29-2009, 01:37 PM	#27
enrita Major General 170 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Tomorrow i am installed RennArt Resonated midpipes and xpipe. Going to be interesting to see what the sound will be and mostly if the droning i got since the Borla racing pipes istall will disappear. Have as well AR catless dps and Bastuck quad. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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10-29-2009, 07:41 PM	#29
rbaldwin28 Lieutenant 15 Rep 408 Posts Drives: E92 335i Sport Prem. White Join Date: Aug 2009 Location: Carlsbad CA and San Diego CA iTrader: (0) Garage List 2007 335I [0.00]	Stock Dp's, AE downpipe back. No drone.
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10-30-2009, 02:07 PM	#34
badass335 Lieutenant Colonel 129 Rep 1,953 Posts Drives: 2017 540i Xdrive Join Date: Jul 2007 Location: Surrey, BC iTrader: (10)	That gives me A LOT of hope!! woohoo! My bastuck will show up tonight so time to get it installed early next week!!
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10-30-2009, 02:08 PM	#35
enrita Major General 170 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Installed the Resonated REnnart midpipes and xpipes... finally no freaken drone Attached Images __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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10-30-2009, 04:26 PM	#38
rbaldwin28 Lieutenant 15 Rep 408 Posts Drives: E92 335i Sport Prem. White Join Date: Aug 2009 Location: Carlsbad CA and San Diego CA iTrader: (0) Garage List 2007 335I [0.00]	I would also recommend Ae Tubro back because it bolts right up on the e92. I do my own work on my car and I can't weld. Good luck with the drone. I hope catted DP don't change the sound too much because I love it. In DS it is head turning, but when I see a cop back to D and he won't even notice me.
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10-30-2009, 05:54 PM	#39
enrita Major General 170 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Catted Dps are useless. Keep the stock ones than. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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10-31-2009, 04:08 AM	#40
rbaldwin28 Lieutenant 15 Rep 408 Posts Drives: E92 335i Sport Prem. White Join Date: Aug 2009 Location: Carlsbad CA and San Diego CA iTrader: (0) Garage List 2007 335I [0.00]	I thought: Good- Stock Better- Catted Downpipes Best- Catless Downpipes This is not true?
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10-31-2009, 05:30 AM	#43
enrita Major General 170 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	its not all about power. Quicker spool up and instant response, Less heat generated close to the turbos = turbo life just got longer. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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